Abstract
Rotor systems need bearings in order to keep uniformity of rotational movement transmission. However, bearingsgenerate friction and energy losses due to heating transmisssion through the friction; for this reason, mechanicak bearings are replaced by magnetic bearings owing to avoid energy losing because of friction. We designed Active Magnetic Bearings (AMB) to transmit rotational movement from source of movement (motor) through the rotor to the movement receptor (such as a conveyor belt). Magnetic Bearings need accuracy during System Identification process and a sophisticated control algorithm to get an uniform rotation movement transmission. In this work also it was analyzed and proved by simulations that Active Magnetic Bearings composed with sensors /actuators based in nanostructures are faster and robust compared with AMB based in traditional sensors/actuators. It because, nanostructures receive and send signals better way tan traditional sensors/actuators, because of high oredered nanoarrays improve sensor/actuator properties.
Highlights
There are many machines that transmit movement through rotation of their shaft, and this causes disturbances such as intense vibrations, noise and heat transmission, and wear, problems that would unbalance the rotor
There are three types of systems for centring shafts that work with magnetism, which are: passive magnetic bearings that are implemented only with ferromagnetic or neodymium magnets that produce a magnetic force, active magnetic bearings that operate by means of electromagnetic coils that obtain magnetic force by means of electrical energy, and hybrid magnetic cushions that are the union of passive and active magnetic bearings
"Active magnetic bearing system (AMB)", by means of magnetism they centre an axis towards a theoretical axis proposed by the author, using nanosensors and nano-actuators it would be obtained answers in short time to comparison of the common sensors and actuators, by means of correct control strategies, plus a classic hardware and with new software strategies, it would be obtained a performance of the magnetic bearings to comparison of the mechanical bearings due to the solids and wide range of work
Summary
There are many machines that transmit movement through rotation of their shaft, and this causes disturbances such as intense vibrations, noise and heat transmission, and wear, problems that would unbalance the rotor. Vibrations can be avoided with passive mechanisms such as dampers around their holders, obtaining a balanced transmission of the rotor, but noise, heat transmission and wear would continue. These are the problems caused by the use of mechanical bearings, used in industries. We suggest some pragmatic hardware designs such as, for example, in electromagnets for fixing the rotor
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